Vehicle-spring buffer.



PATEHTED JAN; 22, 1907.

P. MOKAY. VEHICLE SPRING BUFFER.

urmonxox FILED 11017.6, 905;

- WITNESSES: Y

- ATTORNEYS UNITED s'rArns PArnivT OFFICE.)

TPETER MoKAY, or DAY DAWN, WESTERN AUSTRALIA TO CANDIDO RIBAT' ASSIGNOR OF ONE FOURTH FOURTH TO JOHN A. osBoiu TRALIA, AUSTRALIA.

ject of the King of Great Britain, and a resil dent of Day Dawn,

Murchison, v est -Australia, have invented a new and Improved l Vehicle-Spring Bufl'er, of which the following 1 is a full, clear, and exact description. l This invention relates to improvements in l devices for use in connection with vehiclesprings to relieve the springs from sudden i jars under heavy loads, thus preventing breaking of the springs, the object being to provide a device of this character that may j be readily placed in position and firmly held.

I'will describe a vehicle-spring bufler 6111-. 1

.bodying my invention and then point out the novel features in .the appended claims. 4'

to the accompanypart of-this specifie characters of refer- I Reference is to be hadcation, in which similar engejndicate corresponding parts in all the .figures.

Figure 1 is a side view of a vehicle spring l as attached to a spring. Fig. 2 is a sectional elevation thereof, and Fig. 3 is a section on bufi er embodying my invention, showing it 5 the line3 3 of Fig. 2.

' prises a tube 6, the lower end of 8. These screw-bolts ing with said tube 6 is an upper sisting of an inner tube 8,

Referring to the drawings, 5 designates a vehicle-spring on which a buffer embodying my invention is secured. This bufi'er comwhich issecured in a channel formed in a plate 7, placed on the upper side of the spring, and telescopmember, conwhich engages against the inner side of the tube 6,.and an outer tube 9 engages against the outer side of said tube 6. The upper ends of said tubes 8 and 9. are secured in an annular channel formed in a cap-plate l0 and are held apart at the upper end by a spacing-ring 1 1. The I tube 6 is provided with opposite verticallydisposed slots 12, and screw-bolts 13 engagel in tapped holes in' the tube 9 and have reduced end portions which pass throughsaid I slots 12 and impinge against the inner tube prevent the upper mem her from moving too far upward.

Attached to the lower end of the, inner l tube 8 is a metal disk 14, designed to engage l against a bufi'er-block-gli, consistin of rubounted 1 Specification of Letters Patent. Application tiledL November 6, 1905. Serial No. 286,005.

AUSTRALIA,- 0 AND oNE- or DAY DAWN, WESTERN AUS- vEmcLE-sPRmeBuFFER.

\ Patented Jan. 22,1907.

on the cap-plate 10 is a cushion or which is shown as hemispherical, and this bufi'er consists of a block 16 and a cap-piece 17, the said cap-piece 17 being of somewhat softer rubber than the rubber forming the block 16. Therefore when the upper portion 17 is torn away it maybe readily removed and another piece cemented to the block 16. The upper buffer or cushion isremovably held in place which pass 'through lugs 19, extended upbuffer,

by means of screws l8,

ward from the cap-plate l0, and impinge against the said upper cushion or bufier.

The device is held in place onthe spring 5 by means of clip-yokes 20, which engage at their upper portions in transverse grooves 21", formed in the plate 7, and the lower portions engage with plates 22, placed against the under side of the spring 5. It will be noted that the ends of the plates 22 are inclined upward and outward, thus practicallyforming cam-surfaces, so thatthe clip-yokes by being forced downward thereon will draw the parts closely together. The plates 22 are mounted onan axle 23, and. threaded extensions 24 on the clips ZO-engage with a the under side.

plate 25, which passes across of the axle 23, and these-threaded extensions are engaged by nuts 26, whichare prevented forced downward by the'load in the vehicle.-

a wear-plate 28 on the vehicle will engage with the upper cushion or bufier, forcing the upper members downward into 'cont-actwith the buffer-block 15. i This of course will relieve the main spring 5 from undue pressure. Having thus described -.my invention, 1 claim as new and desire to secure by Letters -Patent- 1. A vehicle-spring buffer comprising tubular telescopic members, a cap-plate on the upper member having upwardly-extended cushion seated on said in said tapped lugs cushion.

bufi'er comprising a tapped lugs, a rubber cap, and screws engaging and engaging against said 2. vehicle-spring plate, designed to side of a vehicle-spring, a tube extended up: ward from said plate and .having opposite slots, the upper member comprising an inner ring5i's.

be secured to the upper tube and an outer tube engaging respectively against the inner and outer sides of the firstnamed' tube, screw-bolts passing. through the said outer tube and through. the slots ofthe first-named tube, a cap-plate on'the upper n iember, and a cushion mounted on said capp ate, I

3. A vehicle-spring buffer comprising a plate adapted to rest on the upper side of a vehicle-spring, a tube extended upward from said plate and having opposite slots, upper tubes having sliding movement on the first-named tube, a metal plate carried by said upper tubes, a rubber cushion in the first-named tube and adapted to be engaged 'by' said metal plate, and a rubber cushion carried by the upper tubes.

4. In. a vehicle-spring buffer, a plateadapted'to be placed on the upper side of a vehicle-spring and having transverse grooves,

passes, the upper portions of said yokes 25 engaging in said grooves of the first-named plates, While the lower portions engage with the cam-surfaces of the lower plates, threaded extensions on said yokes, and a bar engaging against the under side of the vehicle-axle, 3

and to which said threaded extensions are 'oonnected.

In testimony whereof I have signed my name to this specification in the presence of two subscribmg witnesses.

, PETER M CKAY.

Witnesses JAMES BARNES, WM. PALFREYMAN. 

